Machine for making hexagonal boxes



1954 G. E. STILWELL 2,669,715

MACHINE FOR MAKING HEXAGONAL BOXES Filed July 27, 1949 5 Sheeis-Sheet 1 ATTOF/Vf) 7 Feb. 23, 1954 G. E. STILWELL 2,669,715

MACHINE FOR MAKING HEXAGONAL BOXES Filed July 27, 1949 '5 Sheets-Sheet 2 IN V EN TOR.

Feb. 23; 1954 G. E. STILWELL 2,669,715

MACHINE FOR MAKING HEXAGONAL BOXES Filed July 27, 1949 5 Sheets-Sheet 5 /94 LEEBE'LRWSWR'RZR' A @io 2L 4 Tram/[y G. E. STILWELL 2,669,715

MACHINE FOR MAKING HEXAGONAL. BOXES Feb. 23, 1954 Filed July 27, 1949 5 Sheets-Sheet 4 70 48 mm 76 UUUUl 4; My"? 5 2 6 4 47 9,47 9 U 75 L as 60 77 53 e0 5 626W E 577LWLL IN V EN TOR.

ATTORNEY Feb. 23, 1954 G, E. STILWELL 2,669,715

MACHINE FOR MAKING HEXAGONAL BOXES Filed July 2'7, 1949 '5 Sheets-Sheet 5 'LE/V/V E, ST/LWfLL IN V EN TOR.

477'0f/VEY Patented Feb. 23, 1954 MACHINE FOR MAKING HEXAGONAL BOXES Glenn E. Stilwell, Riverside, Calif., assignor to Food Machinery and Chemical Corporation, San Jose, Calif., a corporation of Delaware Application July 27, 1949, Serial No. 107,089

20 Claims.

This invention relates to the box making art and is particularly useful in the manufacturing of wooden boxes having irregular shapes.

It is an object of this invention to produce a machine which may be used in the manufacture of a hexagonal box.

It is another object to provide such a machine in which a box may be produced having the side and bottom pieces disposed in more than three different planes.

A further object of the invention is to provide such a machine in which boxes may be manufactured having the side and bottom pieces thereof disposed in five different planes.

It is yet another object of the invention to provide a nailing machine in which a hexagonal box may be produced semi-automatically.

It is a still further object of this invention to produce a novel anvil for supporting box heads in the manufacture of a box.

The manner of accomplishing the foregoing objects as well as further objects and advantages will be made manifest in the following description taken in connection with the accompanying drawings in which:

Fig. '1 is a front elevational View of a preferred embodiment of the present invention incorporated in a semi-automatic nailing machine.

Fig. 2 is a side elevational view of Fig. 1 with a middle portion of said nailing machine broken away and shown in section on line 22 of Fig. 1.

Fig. 3 is an enlarged vertical sectional view taken on the line 3-3 of Fig. 4.

Fig. 4 is a sectional view taken on line 4-4 of Fig. 3.

Fig. 5 is a composite view of five different positions of the hexagonal nail picker rotor of the invention.

Fig. 6 is an enlarged sectional view taken on the line 6-6 of Fig. 5.

Fig. '7 is an enlarged detail vertical sectional view taken on the line 1-'l of Fig. 2 and illustrating the construction of a shook fiusher.

Fig. 8 is a diagrammatic fragmentary vertical cross sectional view illustrating how the slat stops of the invention are depressed during the first phase of a box-making cycle.

Fig. 9 is a view similar to Fig. 8 and illustrating how the slat stops of the invention are elevated into the operative position in a subsequent phase of a box-making cycle.

Fig. 10 is a fragmentary diagrammatic rear elevational view of the auxiliary anvil operating elements of the invention with said anvils outwardly retracted as shown in Fig. 1.

Fig. 11 is a view similar to Fig. 10 and shows said operating elements positioned as when said auxiliary anvils are swung inwardly into operative positions.

Fig. 12 is a fragmentary plan view of the operating cams for the auxiliary anvils and oblique slat stops of the invention, and is taken on line l2l2 of Fig. 2.

Fig. 13 is a diagrammatic composite view illustrating the position of the work supporting anvil and the cam for actuating the same in the first phase of a box making cycle. The upper portion of this view lies in a vertical plane. The lower portion lies in a horizontal plane.

Fig. 14 is a view similar to Fig. 13 illustrating the second phase in said cycle.

Fig. 15 is a view similar to Fig. 14 illustrating the third phase in said cycle.

Fig. 16 is a view similar to Fig. 15 and illustrates the fourth phase in said cycle.

Fig. 17 is a view similar to Fig. 16 and illustrates the fifth and final phase in said box making cycle of operation.

Fig. 18 is an enlarged detail view of a box head fiusher and gripper of the invention and is taken on line l8l8 of Fig. 17.

Referring specifically to the drawings the invention is there shown as incorporated in a nailing machine 20. This is one of the well-known semi-automatic AC box making machines manufactured by Food Machinery & Chemical Corporation at Riverside, California.

The machine 20 includes a frame 21 having a base 22 side standards 23 and 24, and cross bars 25 and 26 connecting said standards. Journaled in suitable bearings on the standards 24 is crank shaft 21 which is connected by pitmen 28 with a nail driving head 29. The pitmen 28 are provided with springs 30 which compensate for slight differences in thickness of the work into which the nails are driven.

The shaft 21 has a bevelled pinion and is connected by a pedal-actuated transmission 3% to a motor 31 so that said transmission causes the shaft 21 to be given a single revolution each time the transmission is pedal-actuated.-

Journaled at its upper end in a bearing Ail (Figs. 1, 3 and 4) provided on a plate 41 mounted on cross bars 26, and at its lower ends in a bearing provided on a post 42 mounted on the base 22 is a cam driver shaft 43 having a bevelled gear '44 fixed on its lower end which meshes with the bevelled pinion 35. Fixed on an upper portion of the shaft 43 is a sprocket 45.

The drive head 29 is provided withnail drivers 46 (Fig. '7) which are slideably related with nail chucks 4'! carried on cross bars 48 mounted on a chuck supporting cross head 49. The cross head 49 is reciprocated vertically in timed relation with the nail drivers 46 through pitmen 50 by cams fixed on the shaft 21. Nails are thus driven from the lower ends of chucks 41, when the lower faces of the latter arrives at a given horizontal plane, during each of five phases of a box making cycle. One of these phases takes place during each complete revolution of the shaft 21.

Pivotally mounted on certain of the chucks 41 are flushers 52 which are spring biased inwardly under pressure of coil springs 53 so that these fiushers may yield outwardly as indicated by broken lines 54 in Fig. 7.

The nailing machine has the usual pair of clamp shafts 69 and 6| mounted on brackets 62 extending rearwa-rdly from standards 23 and 24 i 1 Supporting fixed clamps 63 and 64 and for supporting and shifting shiftable clamps 65 and (30. This is accomplished by rigidly fixing the shaft 69 on the brackets 52 and slidably mounting the shaft Bl thereon, A spring 51 on one end of the shaft BI holds the clamp jaws and 06 in normally expanded relation with the jaws '63 and 34 while a cam follower E8 on the opposite end of shaft El is en a d by a dag r am 69 mounted on the driver head 29, when the latter 5 descends at the initiation of a nailing operation. to clamp the work between the clamp jaws 63, 64, B5, and 55. At the conclusion of the nailing operation the cam 69 rises out of contact with the follower 68 permitting the spring iii to free the work from said clamping action.

Mounted on the clamping jaws 64 and are stops it which are adjustable to and from the work and which are provided for properly locating the oblique slats in the assembly of a box in the machine 20. Pivotally mounted on a bracket which is fixed on shaft 60 is a double armed stop lover I t which is spring biased by a spring Ti into horizontal position as shown in Fig. 9. This lever carries stops 13 and is cam controlled in a manner to be pointed out hereinafter.

Referring now to the plate 4| described hereinabove as secured to the cross bars 26, this plate has a bearing 8! provided with set screws 8| the latter fixing Within said bearing an eccentric bearing sleeve 32 in which a vertical shaft 83 journals. Fixed on the upper end of said shaft is a, cam disc 84 having ring cams 85 and 85 extending upward from the periphery thereof and a. flat cam ti mounted on the bottom thereof. The cam 85 is uniform in height excepting for a si gle dwell or recess 83 formed therein. Cam 85 has two high portions 89 and 90 which are uniformly of the same height of the high portion of the cam 35. Portion 89 occupies one-- fifth of the circumference of cam 36, and portion 55 two-fifths thereof. These high portions are separated by dwell BI and dwell 92 which are of equal length.

Cam 8i, as shown in Figs. 13 to 16 inclusive has high portions 93 and 94 and-dwells S5 and 85, Fixed on the lower end of shaft 33 is a sprocket 97 which lies in the same plane as and is connected to sprocket 45 by a. chain 98 trained thereabout.

Pivotally supported on a bracket I00 (Figs. 1, 8, 9 and 12) which is fixed on the plate 4| is a cam lever lei having a cam following roller I62 on one end thereof which rides on'the' cam 86 and the opposite end of which is connected by a link I03 with the stop lever I6. Provided in an overhanging portion of the bracket I00 is an adjustable stop screw I04 (Fig. 8) which limits the upward swinging of the stop lever 16 by the spring I! which takes place whenever the roller i532 rides off one of the high portions 89 or 90 of the cam 86 into one of the dwells 9| or 92 thereof.

Pivoted on the plate M on a pin IIO (Fig. 13) is a cam responsive lever III having a cam following roller II2 which rides against the periphery of cam 181. Provided on the opposite end of the lever IiI is a roller II3. Supported on the cross bars 26 and secured thereto by bolts I26 are anvil bases I2I and I22 which are reverse duplicates of each other so that a, description of one will suffice for both, and the same reference numerals will be used to apply to the details of both.

Provided on inner faces of these anvil bases are bearings I23 and I24 in which shafts I25 journal (Fig. 2). Fixed on the front ends of these shafts are auxiliary anvil support bars I26 having auxiliary anvils I2'I welded on their upper ends. Fixed on the rear end of one of the shafts is a crank I30 on one arm of which is provided a cam follower roller I3I which rides upon the cam 85 (see Figs. 10, 11, and 12). The other arm of crank I30 is connected by a link I32 to an arm I33 which is fixed on the rear end of the other shaft I25. The bell crank is sprin biased under the tension of the spring I34 so as to hold the roller I3I against the cam 85. This spring thus swings auxiliary anvils I21 inwardly into operative positions when the roller I3I rides oii of the high portion of cam 85 into the dwell 88 thereof.

Each of the anvil bases I2I and I22 has a fixed anvil 40 (Figs. 1. 2, and 13) which extends inwardly through the space separating the clamping jaws 63 and 65 on the left side and 64 and 66 on the right side. Auxiliary anvils I21, when swung inwardly opposite the spaces between these clamping jaws, lie in the same horizontal plane as the anvils I40.

Also provided on the anvil bases I2I and I22 are bearings I45 in which a heavy shaft I 46 journals. Extending inwardly from the bases I 2| and I22 are adjustable stops I 41 and I48 (Fig. 13).

Fixed on and rigidly united by the shaft I46 is a pair of rockable anvils I49 which together form an anvil cradle I50. Each of these anvils I49 has a heavy hub I5I to which is welded a plate member I52 which lies in a plane perpendicular to the shaft I46 and a plate member I53 which lies in a plane arallel with the shaft I46.

When the shaft I46 is turned to bring the member I53 against the stop I48 (see Figs. 14, 15, and 17) this member is horizontal and the member I52 is vertical and an upper edge of h latter forms an anvil I54 which lies in the same horizontal plane as the upper surfaces of the anvils I40. It is also to be noted that the member I52 and hub I5I of each rockable anvil I49 unite to form a square with the anvil member I53. Each plate member I52 is provided with a shook flusher and gripper I60 which includes a pair of shock guides I BI made of fiat strap material lying close against the plate member I52 these guides being held in place at their rear ends by pins'IBZ and being spring biased against the plate I52 by springs I54 mounted on a bolt I65 which also extends through both of the guides I6I and the member I52 (Fig. 18).

Fixed on the shaft I46 adjacent to one of the rockable anvils I49 is a collar I66 on which a roller It! is rotatably mounted so as to extend downwardly from said collar, as shown in Fi 13 and 14, and in contact with the roller II3 whereby shifting of the latter by the cam 81 automatically determines the rotational position of the shaft I46.

Mounted on an end portion I18 of the shaft IE6 which extends outwardly beyond the adjacent bearing I45, is a collar I12 and a coil spring I13 opposite ends of which are attached to said bearing and said collar so as to spring bias the shaft I48 to rock this and the rockable anvils I49 to .bring the latter into rearwardly reclining positions as shown in Fig. 13 in which the plate members E52 engage the adjustable stops I41.

Adjustably secured to the inner face of clamp jaws 68 and 63 are box head stops I15 (Fig. 2).

The machine 28 is equipped with a nail feed pan I88 which is reciprocated in the well known manner by a pitman I8I so as to supply nails to a bank of nail runs I82 there being one of these nail runs for each of the nail chucks 41. The delivery of nails from the runs I82 to tubes I83 through which said nails gravitate through the chucks 4'! is controlled by a nail picker mechanism I84 which is selective in character and operation similarly to the disclosure in U. S. Letters Patent to Twomley, No. 1,409,801, issued March 14, 1922.

The selective mechanism I84 differs from that in said patent in that the latter selectively controls the delivery of nails to the chucks through a series of four nailing operations comprising four successive phases of a box making cycle, whereas the mechanism I84 similarly controls the delivery of nails for a cycle comprising a series of five nailing operations. This difference is effected by mechanism I84 having a pentagonal nail picker rotor I85 each of the faces I86 of which is provided with a series of nail selecting rollers I81. The rollers I 81 on each of these faces are disposed opposite those nail runs I82 of the chucks 4'! from which it is desired to drive nails in a particular one of a series of phases involved in a box nailing cycle. When this particular face I86 of the rotor I85 is turned past individual nail pickers (not shown) located at the lower ends of nail runs I82 (and which are similar to the pickers shown in the aforesaid Twomley patent) causes nails to be delivered respectively to the six chucks 81 on the left side of the machine and to the six chucks 41 on the right side of the machine. Proceeding downwardly from the top of Fig. 5, the rollers I81 are operative to deliver nailsto the chucks in machine 28 each of the series of five nailing operations which take place in the making of a box therein are successively presented to view. For convenience these five positions of the rotor I85 shown in Fig. are indicated by the letters A to E inclusive.

The rotor I is rotated during each vertical reciprocation of the nail driving head 29 to advance the rotor one-fifth of a revolution and thus deliver nails to those chucks 41 from which nails must .be driven during the next succeeding nailing operation. This rotation of rotor I85 is effected by a ratchet arm I88 mounted thereon and a link I89 pivoted on this arm and extending through an eye I89a on the nail driving head 29 (Figs. 1 and 2). Collars H391) and I890 and a spring I89d on this link causing it to respond positively on the downstroke and yieldably on the upstroke of the head 29.

Operation The specific embodiment of the invention incorporated in the nailing machine 28 and disclosed herein is designed for the purpose of manufacturing a lug box I98 which comprises two heads I9I each of which has a top edge face I92, side edge faces I93, a bottom edge face I94, and oblique edge faces I95, the latter being disposed between and joining the edge faces I93 and I94. A box is formed by nailing slats I 9 6 to the side faces I93; slats I91 to oblique face I95 and a bottom I98 to the bottom face I94. This is accomplished in the machine 28 by a series of five operations in each of which one of said slats or said bottom is nailed to the box heads I9I. These five operations are illustrated diagrammatically in Figs. 13 to 17 inclusive.

It is to be understood that machine 28 is of the type known as a semi-automatic nailing machine in which the burden of feeding the shook or box parts in the machine is left to the operator. Certain necessary shifting of the work while making a box with machine 28 is also left to the operator.

At the beginning of a box making cycle the parts of the machine are positioned as shown in Figs. 1, 2, 8, 10, and 13. The first thing done by the operator is to insert a pair of heads I9I into the slots between clamp jaws 63 and B5, 64 and 66, with these heads resting in reclining positions on the rockable anvil cradle I58 as shown in Fig. 13.. The operator now places a slat I9! into the position in which it is shown in Fig. 13 with the back edge of the slat engaging the stops I8.

The operator now tromps on the clutch pedal to cause a single revolution of the shaft 21. This moves the chucks 4'1 down onto the work (Fig. 13) with chucks L-I and L-2 resting on the left end of said slat I9! and chucks R-2 and R-I resting on the right end of said slat. As shown in Fig. 5 four rollers I8! on the nail picker rotor I85 have caused nails to be fed to the aforesaid chucks resting on this slat I9! prior to the actuation of the machine so that with said actuation, nails are driven from these chucks through said slat and into the box heads I9I.

The shaft 83 being given one-fifth of a revolution during the nailing operation just described, this turns the cam 8'! to force the roller II3 against the roller IB'I thereby rocking the anvil cradle I58 into upright position as shown in Fig. 14. Fig. 5B shows how the first nailing operation has caused nails to be delivered to chucks L-5 and L-B, R-5 and R-B which are now disposed directly over the upwardly disposed side edge faces I83 of the heads I9I. The first nailing operation has also rotated the cam 88 to bring the dwell 92 beneath the roller I82 thus releasing the slat stop levers I6 permitting the spring 11 to swing these into horizontal posithrough slats resting on said oblique head faces from certain of said chucks and, with said cradle in its secondary position, drives nails downwardly through slats resting on said upwardly disposed horizontal head faces from certain other of said chucks.

3. A combination as in claim 2 including means responsive to successive actuations of said nailing mechanism to rock said cradle between said primary and secondary positions to properly present said heads for the nailing of a series of slats thereto.

4. In an apparatus for use in manufacturing boxes the combination of: an anvil cradle having anvil faces disposed to engage and support adjacent edge faces of a box head placed thereon; means for pivoting said anvil cradle for rocking on an axis at right angles to the plane of a head resting on said anvil cradle; and stop means for limiting the rocking of said anvil cradle between primary and secondary box-head-supporting positions, in each of which a different one of the edge faces of said head is presented upwardly in a horizontal plane for the nailing of a slat thereto, said axis being so located in relation to the primary and secondary positions of said anvil cradle and the location on said cradle of said edge faces that the edge faces presented upwardly, with said cradle in said two positions, lie in substantially the same horizontal plane.

5. A combination as in claim 4 in which a clamp including a pair of jaws is provided for rigidly positioning said box head during a nailing operation with said anvil cradle in each of said two positions, a portion of said anvil cradle swinging between said jaws during the rocking of said cradle between said two positions.

6. In an apparatus for use in the manufacture of a box the heads of which have three corresponding pairs of edge faces, each pair of said faces having opposite ends of a slat nailed thereto, the first and third of said pairs of edges being at right angles to each other in the planes of said heads while the second of said pairs lies between and is obliquely related to the first and third of said pairs, the combination of: an anvil cradle formed to support a pair of heads for such a box by simultaneous engagement with faces parallel with and diametrically opposite to said first and third pairs of faces; means for pivotally mounting said cradle for rocking movement in the planes of said heads; and stop means limiting the rocking of said cradle to movement between a primary position in which said second pair of head edge faces is presented horizontally upwardly for the nailing of a slat thereon, and a secondary position in which said first pair of head edge faces is presented horizontally upwardly for the nailing of a slat thereon.

7. A combination as in claim 6 including a nailing mechanism having banks of nailing chucks and drivers operating in the lanes of said heads to drive nails downwardly into work at a given nailing level, the upper faces of the slats applied to said horizontal second and first pairs of head edge faces, when said cradle is in its primary and secondary positions respectively, being at said level, the slat applied at said level to said second pair of faces underlying a certain group of said nailing chucks and receiving nails only from said group, the slat applied at said level to said first pair of faces underlying a different group of said nailing chucks and receiving nails only from said different group; and means for rocking said cradle from one of said positions to the other and coordinately therewith feeding nails to that group of chucks from which nails are exclusively required to be driven for attaching the slat to be secured to said heads with the cradle in said other position.

8. A combination as in claim 7 in which said cradle, while in its secondary position aforesaid, also provides means affording optional support for said heads in the planes thereof and presenting said third pair of head edge faces horizontally upwardly with a slat laid thereon at said nailing level and underlying a still different group of said chucks, said cradle rocking and nail feeding means being actuated by successive nailing operations of said nailing mechanism, said means being so actuated, by the nailing of a slat onto said first pair of head edge faces to retain said cradle in its secondary position and feed nails to the group of chucks overlying the slat applied to said third pair of head edge faces and disposed at the nailing level aforesaid.

9. A combination as in claim 6 in which said cradle, in its secondary position aforesaid, also provides means affording optional support for said heads in the planes thereof, which heads, when so supported, present said third pair of head edge faces horizontally upwardly for the securing of a slat thereto.

10. A combination as in claim 6 in which said cradle in its secondary position aforesaid also provides means affording optional support for said heads in the planes thereof, which heads, when so supported, present said third pair of head edge faces horizontally upwardly for the securing of a slat thereto; and auxiliary horizontal support means disposed on the same level as the aforesaid optional support means on said cradle and in opposite directions therefrom to assist in supporting said heads with said third pair of head edge faces presented horizontally upwardly.

11. A combination as in claim 6 in which said cradle in its secondary position aforesaid also provides means affording optional support for said heads in the planes thereof, which heads, when so supported, present said third pair of head edge faces horizontally upwardly for the securing of a slat thereto; and auxiliary horizontal support means disposed on the same level as the aforesaid optional support means on said cradle and in opposite directions therefrom to assist in supporting said heads with said third pair of head edge faces presented horizontally upwardly, said auxiliary support means including a fixed horizontal support and a shiftable horizontal support, the latter when in use occupying space from which it must be shifted to accommodate said heads in said cradle when said cradle is in its secondary position and when said heads are supported therein with said first pair of head edge faces presented horizontally upwardly.

12. In an apparatus for use in the manufacture of a box having two heads each of which has a bottom edge face and an edge face which is obliquely related to said bottom edge face, the combination of an anvil cradle for supporting said'heads in proper parallel spaced relation for making said box; means for pivotally mounting said cradle on a horizontal ax s for a rocking movement between a primary position in which said bottom edge faces are inclined from horizontal while said oblique faces are disposed upwardly in a given horizontal plane, and a secondary position; stop means between which said cradle is adapted to be rocked to move said cradle from one to the other of said positions;

DE and anvils provided on' said= anvil I. cradle which; when said cradle is: in. said secondary position; are i disposed 'abovesaid axis; whereby said anvils are adapted to support saidhea-ds-to present said. bottom edges thereof-upwardly: substantiallyin said horizontal plane."

13; A combination as inclaimslzi'in'which-fixed: horizontal supports are provided-which: serve as:- extensions of the aforesaidianvils; when :the latter are disposed abovesaid aXia thereby aiding intlie support of said box heads with said bottom-edges ofsaid box heads disposed substantially in saidhorizontal plane.

14; A combinationasdn claim 13 in which shiftable supportsare provided which are adapted to be shifted into -position substantially in .linewith said anvils whenthe latter are disposed abovevsaid: axis, and operating as 'extensions:of saida-nvfls; lying in the opposite-direction therefrom as said fixed supports, to co-opera-tewith said anvilsrandi 4 said :fixed supports .in" supportingsaid heads:

15; A combination 1 as;v in! claim. 12? including-a; nailing mechanism having= banks:-.. at nailing; chucks and drivers-.operating inrthe planes-of said heads todrive nails-downwardly intoithe-s work at a given-nailing level; the' upperrface-ofr' a slat applied to said obliqueihea-d'edges' a nd:theupperface of: a bottom. applied torsaid: bottom edge faces, when: said: craclleeis: in its primary:

and secondary' positions; respectively;. being.- at: v

said level, the slatrappliediat said .levelto; said oblique edge faces: underlying; certain group of said. nailing chucks; and receivingz nails from .saidigroup, the-bottom: appliediattsaid;

level to said; bottom: edgezfacess underlying; .Q.

difierent group of: said nailing: chuelrsczand; re;- ceiving nails from'rsaid-z different group; T means:- ior actuating said" nailing mechanism: through; aseries oftnailingccyclesg andsmea-ns; operatin coordinately with said actuating means Between;

the mid-points. of successive: nailingroycles. for

rocking saidtcradlesfrom one:to:the othergofzsaridz positions and. feeding nails: to that: groups 015: chucks from which'nailspremequiredtcrbe:driven;

inthe latter of: saidisnccessivercyclesrwith .said' cradle in said a other: position;

16. In an apparatusior'susezin themanufacture of a box havingrtwmheads each; of which has: first and second. edge faces; which: are; obliquely;-

relatedto each:other, thezcombinationwofi an: cycle.

anvili cradle; supporting. said; heads: in; properparallel spaced: relation for making;- said; box; means for 'pivota'lly. mounting; said-.- cradlee on a; horizontal i axisv gforza'. rocking movement :,between:

a primary positiomin .whichzsaidjfirsti ed erfacesare inclined: from: horizontal while said; second;

first zhead edgesfacesz. when said: cradle is in: itsprimary and secondary. positions respectively, being:at.said 'level, the slatsapplled at said level to;said's"econd edgeafaces' underlying a certain:

I group .of saidnaillngrchueks:and receiving nails. from said group, the slat applied at said level to saidsfirstedge' faces underlying a difierent group ofrsaidinailing chucksand'receiving nails from said 1 difierentgroup; means. for actuating said nailing: mechanism through: a:, series of mailing cycles; and: means: operating coordinately. with said actuating means, between the mid-points of successive nailing-cycles; for rockingsaid cradle fromlone totheaother of saidpositions and feeding nails:- to, that group; of? chucks: from. which.

nails-are required. to-lbe' driven;in. the latter of; said successive-cycles; with said cradle in. said: other. position.

18.- In: an apparatusvfor *use tinimanufacturing;

.l boxes, thecombina'tionpf an anvil :cradle having.

a. pairwofi' angledanvils the; faces of 1' which. re.- spectivelyzengagenadjacent:edge: faces: of a: pair of:b'ox-.-hea ds: to support;the: latter in proper. parallelspacedi relation for making-a box, and

1 means rfoncoaxially.uniting-said'anvilsafor; simul:

taneonssrotatiorr on'. an axis at. right: angles to the; planes of: said: heads; and: stop means; for limiting: thetrotationr. to; rocking: movements; of; saidxanvil cradlebachand forthrbetweenprimary. and secondary boxa headesupporting :positions. in each- .ofa'which positionsa difierent; correspondin pair oftheredge faces of said: headsis present d upwardly; in. azhorizontalf plane; for. the: nailing; of a1; slat: thereto;

191' A combinationzaseimclaimzlfisimwhiehr side apparatus: includes: a; nail-r driving: mechanism; mounted in spaced relatiQnz-with1and; above said; anviltcradle; means for causin :relative vertical movement; between said: anvil. cradlez and. aid:

nailing' mechanism to: efiectZthe; nailing of slats to. saidupwardly,- presented pairs-z of: h ad: edge faces,=. there;v being? one of: suchnailing: cycles fOrvthBrIlfiiliIlgj orya slatzon-saidmeadsawhile saidanvil cradleisfineeaclrofz'itsxprimaryand. seconde a-ryzpositionstas; aforesaid; and: means op r in in timedirelation-with:thefunctioning of said nailingi mechanismzwhileg said; anvil cradle is in its primary; position: tmshift; said-r anvil; cradleinto its secondary; position. in preparation for, the-:performancmof:the;.next subsequent nail n 20:.A:combination:as in; claim; 19 in which saidanvil cradle:- shifting"v means: functions in timed relation with: said; nailing: mechanism duringa particularrnailing cycleesnbsequent to said, firstmentioned: nailing: cycle, to; reversely rock; said anvil. cradle from:its.-See0ndary; position to.-itsprimary-epositionzinr preparation; for the. nailing cycle immediately following saidla-st-mentioned shifting-:of-said anvil cradle.

LENN1E; Sin-WELL.

References: Cit-ed; in; the; file of this patent UNITED'-STATES'EPATENTS.

. Num e N me at 849.3.6. Greenstreetaarranr Mar. 14, 190 1, 78,613.? Tw0mley:' 19. 4 2,004,355 'IT-womley June 11, 1935 

